201231321022333 has 12 divisors (see below), whose sum is σ = 234207779970780. Its totient is φ = 172393825232832.

The previous prime is 201231321022307. The next prime is 201231321022337. The reversal of 201231321022333 is 333220123132102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 74898172023129 + 126333148999204 = 8654373^2 + 11239802^2 .

It is not a de Polignac number, because 201231321022333 - 2⁵ = 201231321022301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201231321022337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1073288818 + ... + 1073476291.

It is an arithmetic number, because the mean of its divisors is an integer number (19517314997565).

Almost surely, 2^{201231321022333} is an apocalyptic number.

It is an amenable number.

201231321022333 is a deficient number, since it is larger than the sum of its proper divisors (32976458948447).

201231321022333 is a wasteful number, since it uses less digits than its factorization.

201231321022333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146767036 (or 2146767029 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 201231321022333 its reverse (333220123132102), we get a palindrome (534451444154435).

The spelling of 201231321022333 in words is "two hundred one trillion, two hundred thirty-one billion, three hundred twenty-one million, twenty-two thousand, three hundred thirty-three".